Currently have both an RD-1, and a TunerView II. The RD-1 is the "Master" unit, for which I have already purchased a " Hondata Interface Module". This is installed, and working perfectly. If I want to daisy chain from the RD-1 (master), to the TunerView II, do I need a 2nd "Hondata Interface Module", for the TunerView II, or will the 4-wire connector simply install from the daisy output of the RD-1, to the middle port input of the TunerView II?

HRTuning wrote:No problem. You will need to put the unit into daisy mode via the menu system when using the TunerView II for daisying data.

Thanks for all your help today. I was able to figure out my issue. I did not have "Auto Daisy" selected within the settings of the RD-1 (master unit). As soon as I selected this and hit "program", the TunerView II came alive (how embarrassing)

As discussed previously, my TunerView II is daisy-chained (slave) off of my RD-1. After successfully getting this to work again, I've been having an intermittent problem of it showing data, and then switching back to "connecting" sporatically while driving. I have not been able to find a rhyme or reason for it suddenly losing connection, and then showing data. "Peak" values never reset, and always continue to show their appropriate values. I've verified the connection that the connector is plugged in completely on both ends. Basically, there could be 3-different issues:

1. RD-1 is intermittently not sending data to the TunerView II (the RD-1 never loses data or its display. RD-1 is working flawlessly as a "master" unit)

2. A break somewhere in the 4-pin harness connecting the two units

3. TunerView II is malfunctioning internally

Some things that I have NOT checked as of yet for diagnosing:

1. As recommended earlier by you, making the TunerView II the "master" unit to see if the display continues to lose its intermittent data display. Doing this I think would narrow down if the unit is faulty or not

2. Trying a new 4-pin wire harness. I'd have to purchase this for testing purposes

I wanted to see if there were any thing else that might pop in your head as an idea or a possible solution to check. Or, possibly you've run into this issue before.

The reason I told you to run the TVII first in the chain is because depending on the amount of data you're displaying on the RD1 the RD1 may be updating slower than the TunerView is set to. To better control how often the TVII is trying to update data use the TunerView II speed slider setting in the setup software.

HRTuning wrote:The reason I told you to run the TVII first in the chain is because depending on the amount of data you're displaying on the RD1 the RD1 may be updating slower than the TunerView is set to. To better control how often the TVII is trying to update data use the TunerView II speed slider setting in the setup software.